Arm shaft sleeve structure and stage lamp

Abstract

The utility model discloses an arm shaft sleeve structure and a stage lamp, the arm shaft sleeve structure comprises a shaft sleeve assembly, the shaft sleeve assembly comprises a base, a cover plate, a bearing, a framework oil seal and an electronic control board, the base is provided with a containing cavity with an opening in one end, and the cover plate is installed on the base and is in sealing connection with the base; the base is provided with a first mounting hole and a second mounting hole which are coaxially arranged, the first mounting hole is located in the containing cavity, the bearing is mounted in the first mounting hole, the framework oil seal is mounted in the second mounting hole, and the shaft sleeve assembly is used for being connected with a lamp body support. One end of the arm rotating shaft sequentially penetrates through the framework oil seal and the bearing, and the other end of the arm rotating shaft is used for being connected with a lamp body support. In the embodiment of the invention, the outdoor protection requirement can be met, the arm shaft sleeve structure is prevented from adopting the design of full die-casting forming, and the cost, the volume and the weight can be reduced. Meanwhile, the base and the cover plate form a box-shaped structure, so that the strength and the stability of the arm shaft sleeve structure can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of stage lights, and in particular to an arm shaft sleeve structure and a stage light. Background Art

[0002] In the related technology, the arm of a stage lighting fixture must not only satisfy the function of supporting and connecting the lamp body, but also provide installation space and support structure as well as support for the use environment for the rotation of the lamp, the insertion of the wire harness and the connection of the lamp body. Among them, the arm of a stage lighting fixture usually includes a sleeve assembly, an electronic control panel, an arm bracket, an arm reinforcement plate and an arm shaft. With the increasing demand for the outdoor mobile performance market and outdoor landscape lighting, outdoor stage lighting fixtures are required to have a protection level of IP65 or above. At the same time, the size and weight of the lamps are also required to be light and compact. In other words, the dust and waterproof requirements of the outdoor performance market for lamps affect the structural design direction and layout of the arm sleeve assembly.

[0003] The design of the arm sleeve assembly of stage lighting fixtures on the market is relatively simple, which only installs the sleeve assembly, electronic control board, arm reinforcement plate and arm shaft hand on the arm bracket, and only the outer shell is used for simple protection, so it cannot meet the IP65 protection requirements. Some stage lighting fixtures adopt a decentralized design method, simply installing the bearing or skeleton oil seal with the sleeve and placing it on the arm bracket, and then installing the electronic control board in the chassis, adding a reinforcement plate to improve the strength of the arm bracket, and the arm assembly is protected by IP20, and the electronic control board is installed in the chassis. This solution can meet the protection requirements, but such a solution not only increases the size of the upper chassis but also increases the heat source points of the chassis, resulting in an increase in the heat dissipation cost of the chassis. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an arm sleeve assembly and a stage light, which can meet the waterproof requirement and reduce the material cost.

[0005] According to an embodiment of the present application, an arm sleeve structure includes:

[0006] A shaft sleeve assembly, comprising a base, a cover plate, a bearing, a skeleton oil seal and an electronic control board, wherein the base has a receiving cavity with an opening at one end, the cover plate is mounted on the base and is sealed and connected to the base, the base is provided with a first mounting hole and a second mounting hole coaxially arranged, the first mounting hole is located in the receiving cavity, the bearing is mounted in the first mounting hole, the skeleton oil seal is mounted in the second mounting hole, and the electronic control board is mounted in the receiving cavity;

[0007] The arm shaft has one end through which the skeleton oil seal and the bearing are sequentially passed, and the other end of the arm shaft is used to be connected to the lamp body bracket.

[0008] Furthermore, the bearing is interference fit with the first mounting hole.

[0009] Furthermore, the skeleton oil seal is interference fit with the second mounting hole.

[0010] Furthermore, the shaft sleeve assembly also includes a sealing member, a sealing groove is provided on a side of the base close to the cover plate, and the sealing member is provided in the sealing groove.

[0011] Furthermore, the base is provided with a waterproof connector installation hole and a wiring harness insertion hole.

[0012] Furthermore, the shaft sleeve assembly also includes a heat conductive block, and the heat conductive block is arranged on the electronic control board.

[0013] Furthermore, the shaft sleeve assembly also includes a heat conductive member, the heat conductive block is arranged on the side of the electronic control board close to the bottom wall of the accommodating cavity, the heat conductive member is arranged on the heat conductive block and is located between the heat conductive block and the bottom wall of the accommodating cavity, and the heat conductive member is respectively abutted against the heat conductive block and the bottom wall of the accommodating cavity.

[0014] Furthermore, the shaft sleeve assembly also includes a cooling fan, and the cooling fan is arranged on one side of the electronic control board.

[0015] Furthermore, the shaft sleeve assembly also includes a bearing limit plate, which is arranged in the accommodating cavity and located on a side of the bearing away from the bottom wall of the accommodating cavity, and the bearing limit plate is used to stop the bearing.

[0016] Furthermore, it also includes an arm bracket, and the base is installed on the arm bracket through fasteners.

[0017] A stage light according to another embodiment of the present application includes a lamp body bracket and the arm shaft sleeve structure as described above, wherein the lamp body bracket is connected to the arm shaft.

[0018] The arm sleeve structure and stage light of the embodiment of the present application have at least the following beneficial effects: In the embodiment of the present application, the base and the cover are combined into a box body, and the bearing, electronic control board and other components are arranged in the accommodating cavity of the base, so that the electronic control board and other components can be sealed with the outside through the sealing connection of the base and the cover plate, thereby meeting the outdoor protection requirements, and avoiding the arm sleeve structure to adopt a full die-casting design, which is conducive to reducing costs and volume weight. At the same time, the base and the cover form a box-shaped structure, which can improve the strength and stability of the arm sleeve structure, and is conducive to improving the supporting effect of the arm sleeve structure.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of an arm sleeve structure according to an embodiment of the present application;

[0022] Figure 2 This is a schematic cross-sectional view of an arm sleeve structure according to an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the exploded structure of an arm sleeve structure according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of an exploded structure of a part of the arm sleeve structure in one embodiment of the present application;

[0025] Figure 5 for Figure 4 Schematic diagram of the explosion structure from another perspective.

[0026] Reference numerals:

[0027] 110, base; 111, waterproof connector mounting hole; 112, harness insertion hole; 113, accommodating cavity; 114, first mounting hole; 115, sealing groove; 120, cover plate; 130, bearing; 140, skeleton oil seal; 150, electronic control board; 160, sealing element; 170, bearing stop plate; 180, shaft fixing assembly; 191, heat conducting block; 192, heat conducting element; 193, cooling fan;

[0028] 200, arm pivot;

[0029] 300. Arm support. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0034] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] In one aspect, the present application discloses an arm sleeve structure. Figures 1 to 5 As shown, it includes a shaft sleeve assembly and an arm shaft 200, one end of the arm shaft 200 is installed on the shaft sleeve assembly, and the other end of the arm shaft 200 is used to connect with the lamp body bracket.

[0036] Specifically, the sleeve assembly includes a base 110, a cover plate 120, a bearing 130, a skeleton oil seal 140 and an electronic control board 150. The base 110 has a receiving cavity 113 with an opening at one end. The cover plate 120 is installed on the base 110 and is sealed with the base 110. The base 110 is provided with a first mounting hole 114 and a second mounting hole arranged coaxially. The first mounting hole 114 is located in the receiving cavity 113. The bearing 130 is installed in the first mounting hole 114. The skeleton oil seal 140 is installed in the second mounting hole. The electronic control board 150 is installed in the receiving cavity 113. One end of the arm shaft 200 is provided with the skeleton oil seal 140 and the bearing 130 in sequence. The other end of the arm shaft 200 is used to connect with the lamp body bracket. It is worth mentioning that the cover plate 120 is installed at the opening of the base 110. When the cover plate 120 is sealed with the base 110, the opening can be blocked, thereby ensuring the sealing performance of the sleeve assembly.

[0037] One end of the arm shaft 200 is at least partially inserted into the base 110 , and the other end of the arm shaft 200 is located outside the base 110 and is used to connect with the lamp body bracket. The arm shaft 200 can rotate around the circumferential direction of the bearing 130 through the bearing 130 .

[0038] In the embodiment of the present application, the base 110 and the cover plate 120 are combined into a box body, and the bearing 130, the electronic control board 150 and other components are arranged in the accommodating cavity 113 of the base 110, so that the electronic control board 150 and other components that need to be waterproof can be sealed with the external sealing setting through the sealing connection of the base 110 and the cover plate 120, thereby meeting the outdoor protection requirements, and avoiding the design of the arm sleeve structure using full die-casting, which is conducive to reducing costs and volume weight. At the same time, the base 110 and the cover plate 120 form a box-shaped structure, which can improve the strength and stability of the arm sleeve structure, and is conducive to improving the support effect of the arm sleeve structure.

[0039] In the embodiment of the present application, the bearing 130 is interference fit with the first mounting hole 114. That is, the outer frame of the bearing 130 is tightly connected with the first mounting hole 114, so that the bearing 130 is fixedly mounted on the base 110.

[0040] In some embodiments of the present application, the skeleton oil seal 140 is interference fit with the second mounting hole. That is, the skeleton oil seal 140 is installed in the second mounting hole by interference fit, so that the outer wall of the skeleton oil seal 140 is tightly connected with the second mounting hole.

[0041] In the embodiment of the present application, the skeleton oil seal 140 is provided with a through hole for the arm shaft 200 to pass through. During assembly, one end of the arm shaft 200 is successively passed through the through hole of the skeleton oil seal 140 and the inner ring of the bearing 130, and the arm shaft 200 and the inner ring of the bearing 130 are relatively stationary in the circumferential direction of the inner ring, that is, the arm shaft 200 and the inner ring of the bearing 130 are relatively fixed.

[0042] In some embodiments of the present application, see Figures 2 to 5 As shown, the shaft sleeve assembly further includes a bearing stop plate 170 , which is disposed in the accommodating cavity 113 and located on a side of the bearing 130 away from the bottom wall of the accommodating cavity 113 , and is used to stop the bearing 130 .

[0043] In some embodiments of this application, please continue to refer to Figures 2 to 5 As shown, the shaft sleeve assembly also includes a shaft fixing assembly 180 , which is installed at one end of the arm shaft 200 located inside the base 110 , and the shaft fixing assembly 180 is used to limit the axial direction of the arm shaft 200 .

[0044] In some embodiments of the present application, the sleeve assembly further includes a seal 160, and a sealing groove 115 is provided on the side of the base 110 close to the cover plate 120, and the seal 160 is provided in the sealing groove 115. During assembly, the seal 160 is provided in the sealing groove 115, and the side of the seal 160 close to the cover plate 120 abuts against the cover plate 120. In this way, under the extrusion of the cover plate 120 and the base 110, the seal 160 is deformed so that the cover plate 120 and the base 110 are sealed and connected, so that the accommodating cavity 113 inside the base 110 can be isolated from the outside, so that the arm sleeve structure has a better protection effect.

[0045] In a possible implementation, the sealing member 160 may specifically be a waterproof silicone strip.

[0046] In some embodiments of the present application, see Figure 2 and Figure 3As shown, a waterproof connector mounting hole 111 and a harness insertion hole 112 are provided at the lower end of the base 110. Specifically, the waterproof connector mounting hole 111 is used to install a waterproof connector, and the waterproof connector is sealed and connected to the waterproof connector mounting hole 111 to ensure the sealing performance of the arm sleeve structure; one end of the harness insertion hole 112 is connected to the accommodating cavity 113, and the other end is connected to the outside. Among them, the harness insertion hole 112 can allow the harness to pass through, so that the harness connected to the electronic control board 150 or the harness connected to other components is connected to the outside through the harness insertion hole 112. It is worth understanding that the harness insertion hole 112 can be sealed and connected to a connector provided with a channel to ensure the sealing performance inside the arm sleeve structure. Exemplarily, the aforementioned connector can be specifically a pipe or a hose.

[0047] In some embodiments of the present application, see Figures 2 to 4 As shown, the sleeve assembly further includes a heat conducting block 191, which is disposed on the electronic control board 150. Specifically, the heat conducting block 191 can conduct away the heat in the electronic control board 150 to improve the heat dissipation efficiency of the electronic control board 150.

[0048] In one possible implementation, see Figures 2 to 4 As shown, the heat conducting block 191 is disposed on one side of the electronic control board 150 close to the bottom of the accommodating cavity 113, and the heat conducting block 191 also abuts against the bottom wall of the accommodating cavity 113, that is, the heat conducting block 191 abuts against the base 110. In this way, the heat of the electronic control board 150 can be guided to the base 110 through the heat conducting block 191, thereby facilitating the rapid extraction of the heat in the electronic control board 150, so as to ensure the heat dissipation efficiency of the arm sleeve structure.

[0049] In some embodiments of this application, please continue to refer to Figures 2 to 4 As shown, the sleeve assembly also includes a heat conductive member 192. The heat conductive block 191 is arranged on the side of the electronic control board 150 close to the bottom wall of the accommodating cavity 113. The heat conductive member 192 is arranged on the heat conductive block 191 and is located between the heat conductive block 191 and the bottom wall of the accommodating cavity 113. The heat conductive member 192 is respectively abutted against the heat conductive block 191 and the bottom wall of the accommodating cavity 113.

[0050] Furthermore, the cross-sectional area of ​​the heat conductive member 192 is larger than the cross-sectional area of ​​the heat conductive block 191. The heat conductive member 192 is disposed on the bottom wall of the accommodating cavity 113, and the position of the heat conductive member 192 is opposite to the heat conductive block 191. In this way, the heat on the electronic control board 150 can be transferred to the base 110 through the heat conductive block 191 and the heat conductive member 192. The heat on the heat conductive block 191 can be first dispersed to the heat conductive member 192, and then transferred to the base 110 through the heat conductive member 192. Since the cross-sectional area of ​​the heat conductive member 192 is larger than the projected area of ​​the heat conductive block 191 projected onto the bottom wall of the accommodating cavity 113, the heat dissipation efficiency of the electronic control board 150 can be further increased to ensure the heat dissipation efficiency in the arm sleeve structure.

[0051] In a possible implementation, the heat conducting member 192 may be a heat conducting pad, which is laid on the bottom wall of the accommodating cavity 113, and one end surface of the heat conducting block 191 close to the heat conducting pad abuts against the heat conducting pad. The heat conducting pad is made of a heat conducting material, and for example, the heat conducting pad may be made of heat conducting adhesive.

[0052] In some embodiments of the present application, see Figures 2 to 5 As shown, the sleeve assembly further includes a cooling fan 193, which is disposed on one side of the electronic control board 150. The electronic control board 150 is provided with electronic components, and the cooling fan 193 is disposed around the electronic components on the electronic control board 150. During use, the cooling fan 193 can be used to dissipate heat for the electronic control board 150 to improve the heat dissipation efficiency.

[0053] As one example, see Figure 2 As shown, the heat dissipation fan 193 is disposed on one side of the electronic control board 150 close to the cover plate 120, and at least one of the heat conduction block 191 and the heat conduction member 192 is disposed on the other side of the electronic control board 150. In this way, the heat conduction block 191 and / or the heat conduction member 192 is used for heat conduction, and the heat dissipation fan 193 is used to accelerate the gas flow speed, thereby improving the heat dissipation efficiency of the electronic control board 150.

[0054] It is worth understanding that in some other embodiments, under the premise of meeting the installation requirements, the installation positions of the cooling fan 193, the heat conductive block 191 and the heat conductive member 192 can also be adaptively changed, which is not limited here.

[0055] In a possible implementation manner, the heat dissipation fan 193 may specifically be an axial flow fan.

[0056] Refer to the following Figures 1 to 5 The arm sleeve structure of the embodiment of the present application is described in detail with a specific embodiment. It should be understood that the following embodiment is only an exemplary description and should not be construed as a limitation on the embodiment of the present application.

[0057] like Figures 1 to 5 As shown, the 300-arm sleeve structure includes a base 110, a skeleton oil seal 140, a bearing 130, a waterproof joint, an electronic control board 150, a heat conductive block 191, a heat conductive rubber pad, a fan support plate, an axial flow fan, a bearing limit plate 170, a waterproof silicone strip and a cover plate 120. The base 110 is designed in the shape of a long box, and a first mounting hole 114 for mounting the bearing 130 is provided at the upper end of the base 110 and a second mounting hole for mounting the skeleton oil seal 140 is provided on the back thereof. The electronic control board 150 and the installation space and the installation column of the fan support plate are provided at the middle end of the base 110, and the waterproof joint installation hole 111 and the wiring harness insertion hole 112 are provided at the lower end of the base 110.

[0058] During assembly, the bearing 130 is installed in the first mounting hole 114 of the base 110 by interference fit, so that the outer frame of the bearing 130 is tightly connected with the first mounting hole 114; the bearing limit plate 170 is fixed to the base 110 with fastening screws and the bearing limit plate 170 is placed on the end surface of the bearing 130 away from the base 110 to prevent the bearing 130 from slipping out after loosening; and then the skeleton oil seal 140 is installed in the second mounting hole on the back side of the base 110 by interference fit so that the outer wall of the skeleton oil seal 140 is tightly connected with the second mounting hole.

[0059] Furthermore, the heat conductive block 191 is fixed to the back of the electronic control board 150 by fastening screws, the heat conductive pad is pasted on the back of the heat conductive block 191, and the electronic control board 150 is fixed to the installation space and the installation column provided on the base 110 by fastening screws, so that the back of the heat conductive pad is in contact with the inner wall of the base 110, thereby expanding the heat generated by the electronic control board 150 to the base 110, thereby increasing the heat dissipation area; the axial flow fan is fastened together with the fan support plate by fastening screws, and then the fan support plate is fixed to the installation space and the installation column provided on the base 110 by fastening screws, wherein the heat dissipation fan 193 is placed above the electronic control board 150 to dissipate heat for the electronic components in the electronic control board 150; the waterproof joint is threadedly connected to the waterproof joint mounting hole 111 provided on the lower end face of the base 110; the waterproof silicone strip is installed in the sealing groove 115 on the positive end face of the base 110, and at this point, the arm sleeve structure is assembled into an arm sleeve semi-component.

[0060] In the embodiment of the present application, the arm sleeve structure also includes an arm bracket 300 and a shaft fixing assembly 180. The arm sleeve semi-assembly is fixed to the arm bracket 300 by fastening screws, and the arm shaft 200 is installed in the inner hole of the bearing 130 by transition fit, so that one end of the arm shaft 200 is placed in the accommodating cavity 113 of the base 110, and the other end is placed outside the base 110 for subsequent fixed connection with the lamp body bracket, and then the shaft fixing assembly 180 is fixed to one end of the arm shaft 200 placed in the accommodating cavity 113 of the base 110 by fastening screws, so that the arm shaft 200 can only perform rotational motion.

[0061] Finally, the cover 120 is fixed to the front end surface of the base 110 with fastening screws, and the waterproof silicone strip is pressed tightly to isolate the inner cavity of the base 110 (i.e., the accommodating cavity 113) from the outside to form a closed cavity. At this point, the arm sleeve structure is assembled and installed.

[0062] In the above embodiment, the base 110 is designed to be in the shape of a long box, and a first mounting hole 114 and a second mounting hole are arranged at the upper end thereof, so that the first mounting hole 114 and the second mounting hole are coaxial and concentric, so as to ensure the coaxiality of the bearing 130 and the skeleton oil seal 140 after installation, thereby ensuring that the arm shaft 200 can be in close contact with the lip of the skeleton oil seal 140 after installation, and there will be no problems such as leakage and jumping during rotation; the bearing limit plate 170 is fixed to the base 110 with fastening screws, so that it is placed on the outer end surface of the bearing 130, which can prevent the bearing 130 from sliding out after loosening; an inner cavity space is provided at the middle end of the base 110, and a mounting column is provided for the installation of the electronic control board 150, the axial flow fan and the fan support plate.

[0063] In the above embodiment, the thermal conductive pad conducts heat to the inner wall of the base 110, which can improve the heat exchange efficiency of the electronic control board 150, and can also reduce materials and reduce the size of the arm. The lower end of the base 110 is provided with a waterproof connector installation hole 111 and a harness insertion hole 112. The harness insertion hole 112 is used to connect the pipeline so that the harness connected to the chassis can be inserted into the pipeline; the waterproof connector installation hole 111 is used to install a waterproof connector so that the motor harness of the arm can be connected to the electronic control board 150 in the base 110 through this waterproof connector. This makes it convenient to insert the harness and maintain it, and can also ensure that it is sealed without leakage.

[0064] In the above embodiment, the arm shaft sleeve semi-assembly is fixed to the arm bracket 300 by fastening screws. At the same time, the arm shaft 200 is installed in the inner hole of the bearing 130 through transition fit, so that one end of it is placed in the inner cavity of the base 110, and the other end is placed outside the base 110 for subsequent fixed connection with the lamp body bracket. The shaft fixing assembly 180 is then fixed to one end of the arm shaft 200 placed in the inner cavity of the sleeve base 110 by fastening screws, so that the arm shaft 200 can only make rotational motion, so that the wiring harness connecting the arm and the lamp body can be directly inserted into the receptor to ensure smooth and reasonable insertion of the wiring harness.

[0065] In addition, in the above embodiment, a sealing groove 115 is provided on the front end surface of the base 110 to install a waterproof silicone strip, so that the inner cavity of the base 110 is isolated from the outside to form a closed cavity.

[0066] In the above embodiment, the base 110 provides a fixed support structure for the bearing 130 and the skeleton oil seal 140, and also provides a heat dissipation area for the electronic control board 150; at the same time, the long box-shaped base 110 also increases the structural strength of the arm bracket 300; in addition, the enclosed cavity formed inside the base 110 can provide space for the wiring harness to be inserted, and can also protect the electronic control board 150 to isolate it from external rain and dust.

[0067] Another embodiment of the present application discloses a stage lamp, including a lamp body bracket and an arm sleeve structure, wherein the lamp body bracket is connected to the arm shaft 200. It is worth noting that the stage lamp of the present application embodiment has all the technical effects of the aforementioned arm sleeve structure, which will not be repeated here.

[0068] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An arm sleeve structure, characterized in that: include: A shaft sleeve assembly, comprising a base, a cover plate, a bearing, a skeleton oil seal and an electronic control board, wherein the base has a receiving cavity with an opening at one end, the cover plate is mounted on the base and is sealed and connected to the base, the base is provided with a first mounting hole and a second mounting hole coaxially arranged, the first mounting hole is located in the receiving cavity, the bearing is mounted in the first mounting hole, the skeleton oil seal is mounted in the second mounting hole, and the electronic control board is mounted in the receiving cavity; The arm shaft has one end through which the skeleton oil seal and the bearing are sequentially passed, and the other end of the arm shaft is used to be connected to the lamp body bracket.

2. The arm sleeve structure according to claim 1, characterized in that: The bearing is interference fit with the first mounting hole; and / or the skeleton oil seal is interference fit with the second mounting hole.

3. The arm sleeve structure according to claim 1 or 2, characterized in that: The shaft sleeve assembly also includes a sealing member. A sealing groove is provided on one side of the base close to the cover plate, and the sealing member is arranged in the sealing groove.

4. The arm sleeve structure according to claim 1, characterized in that: The base is provided with a waterproof connector installation hole and a wire harness insertion hole.

5. The arm sleeve structure according to claim 1, characterized in that: The shaft sleeve assembly also includes a heat conductive block, and the heat conductive block is arranged on the electronic control board.

6. The arm sleeve structure according to claim 5, characterized in that: The sleeve assembly also includes a heat conductive member, wherein the heat conductive block is disposed on a side of the electronic control board close to the bottom wall of the accommodating cavity, the heat conductive member is disposed on the heat conductive block and is located between the heat conductive block and the bottom wall of the accommodating cavity, and the heat conductive member abuts against the heat conductive block and the bottom wall of the accommodating cavity respectively.

7. The arm sleeve structure according to claim 5, characterized in that: The shaft sleeve assembly also includes a heat dissipation fan, and the heat dissipation fan is arranged on one side of the electronic control board.

8. The arm sleeve structure according to claim 1, characterized in that: The shaft sleeve assembly also includes a bearing limiting plate, which is arranged in the accommodating cavity and located on a side of the bearing away from the bottom wall of the accommodating cavity, and is used to stop the bearing.

9. The arm sleeve structure according to claim 1, characterized in that: An arm support is also included, and the base is mounted on the arm support via fasteners.

10. A stage light, characterized in that: It comprises a lamp body bracket and an arm sleeve structure as described in any one of claims 1 to 9, wherein the lamp body bracket is connected to the arm rotating shaft.

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